Regenerative pasteurizer.



J. WILLMANN. REGENERATIVE PASTBURIZER. APPLICATION FILED APRA), 1909, 986,257, n Patented Mar. 7, 1911.

2 SHEETS-SHEET 2.

" fire .eetion for the pasteurizer which is of l Regenerative PasteuriZei-afof Vwhich the fol izov ' tion of which enables the parte. oreleinente tto be takenvl apart with the greatest facility insists in nei-tain improi'emente. and eoinla subjeet of tliellinperor of Germany, Are* ."si'ding at Derby, in the county of New l.and it hasy .for object primarily to pro! vide an improved pasteiirizer of the regen the heated liquid from the heating chamber RGENERATIVE 'To allie/om it may concern.'

Be it known that I', Joisnrii `l 7ViLi,i L-\i\i\i,

l-Ialvenjand State of Connecticut, have invented new and useful Improvements in lowiiigi's aspecification." L.

My present 'invention relatesv to improvements inpasteurizers of the -elaes need in .pasteurizing inillir,4 cream and other liquids,

eratirve type Wherehya relatively high efcieney in the 'preliiiiinary heating of the .entering 'liquid and the Cooling ofthe outflowinglliql'iid is atta-ined, the uniform exposureof Vthe 'liquid to i the ,heating medium withoutoverheating-is insured, and prefer ably the operation of certain parte4 of the pasteurizer Serves to auton'iatically transfer to the regenerative elia ailier.

Another object of the invention is to provide 'a pa'steurizer of this class the. construeforv cleansing and Sterilization and to be again aes'enibled readily, A. further ob]eetis to provide a regeneraproved construction` it'presenting a lrelatively large aggregate area .Within a ,given spaee to the liquid during the iiiiitual heating and cooling thereon its eieinente may be readily taken apart. and reaaeeni bled and when assembled, this 'section of the pasteurizer may be readily applied or moved as unit with i'eiii'ence to the heatA ing Seetor'i of the paeteiirizeif,

To. these and other 'jends, the invention liinationa. and arrangen'ients of'part all as will Ahe hereinafter more fully il v the "novel featuresf being pointed out pan ticularly in the el'aiine at 'the end or' the Specification. i A

ln the accompriming {li'awing:HH-Figure 1 repi'oemis'; i 'venti-@il ifrriiral .exertion of a. regenerative pagsteiiiif/.ir iriiaiiji-irtid in zie eorflaiiee vith my 'f iieseiat invention; lfigi'. if; a Vdetail Sectional View ot a ponti, nl" the apparatue showing me of the blades for inw JOSEPH .W1LLMANN;. or

. Specification of Letters Fatent. App-mation sieri april a, serial No. 458,925. y.

f-lTES PATENT, .f

DERBY, CONNECTICUT.

Patented Hur. 7,- 1911..

(lacing a flow of the heated liquid frointhe heating chamber to the regenerative. section;

aniLFigs/ and 4 are detail views ofthe element for insuring' uniform exposure of thel liquid to the heating medium, preventingr sticking of the' liquid upon the Wallsof the vheating chamber and for causingv the discharge of the liquid from the heating" rliainbe'r.

`fiiinilar parte are ydeaignated hy the same reference-el'iaracters in the several views,

My present Ainvention is applicable genone forni of the invention. It will be understood. howei'ier. that the forni shown in the 'drawing is illustrated as an example, as

certain inodilications or changes may haA made in the apparatus in' order that the`.in

vention may be applied to the best. advantage in each particular ease as oiriunstanees' may require.

era`lly"to regenerative pasteiirizers Iand inf the :accompanying drawing', I have shown' `The pastenrizer shown in the accompanyf.

ing drawing eompiisesvgenerally a heating jaoket l which in this instance is .annular v and 'ie ineloeed hy the inner and outer Walls Q and 3, the bottom of this jacket- .being closed by a. plate 4 which may 'form the topg.,

.of an appropriately constructed I hase 5, Steam or other Suitable heating medium he! ing' conducted preferably to the upper-'portion of the heating jacket' by an inlet pipe 5, and it may he exhausted together. with any water of Condensation by the outlet pipe 7'. The top of the heating jacket is closed hy an annular casing-'8 which forms an an- .nuiar channel. 9 Within it.y the top of this channel being' bounded by an inwardly projeotiiig oro'verlianging wall 10 of the casing,

The i'egenera tive Seetion of the pasteiirizer according to the present invention is bodily removahle as a' unit with reference to. the

4heating section which lias' just heen cle-'.1y

scribed as supported on the' base. Initlie pre'ent instance., I have shown a regenerati section which is of an improved eonstruction. it consisting of an outer corruifylinder '15%. these @vlinders being of different diameters so that one may readily fit within the othf-ri'.I and. the' space between their walls it-rma 'a chamber 13 through which the liquid after #leaving the heating chamber "i gated cylinder "ll and an inner corrugated.

treatment and to also serve aS means for the p attachment ol a supporting flange 18 which 1s i 'suitably secured to thisI casing and is adapted torest upon the top of the casing 8 ot the 5 ll'n order' to insure a luid-A l' tight tit between the regeiie'ratire and heating sections of the pasteurizenan annular y' pacltiiigfstrip 19 may bc interposed between lieating'section.

the upper wall of the' casi-ng S and the flange 18, and to #retire the parts' in positi'oii,

a suitable number ol' clamping bolts 20 nitty he provided, these bolts being such ,that they may be readily ii'ianipulated to fasten or unt'asten the two sections as may be desired.

v'lhe'iriner cylinder 12 is also provided with i fa gutter 21 to which the liquid is conducted 23 through vwhich the liquid may `pass and then ilowdownwardly over the interior wall l the inner cylinder.

" stance, the liquid to be treated'is supplied to by a. second pipe 22, the bottom ot the gutprovided with suitable openings the pipes 16A and :(22 by a tank Q11. In order toeonnect the inner and outer cylinders of the regenerative section in such a. Way that they maybe readily separated for cleansing or sterilization while at the saine time they may' have a liquid-tight lit 'betweentheim the i upper'portion of the inner cylinder is pro-ll videtyiit the present `instance with an external llange 25 which cooperates with a corresponding flange 2601i the outer cylinder preferably through theinedium of a packing ring 27 which is interposed between such lianges while the bottom of the inner cy1in der is provided with au internal ring 28 and the outer cylinder 1s provided with a corresponding internal ring 29, these rings being drawn together by means ot'a Suitable i mirnberof bolts or equivalent devices 30.

y Preferably the same ineans which draws tof gether therings at the lower ends of tlie cylinders'serves to produce the liquid-tight joint betweeii- Vthe lupper portions ot' these t: liiidersj, and in order lo prevent leakage of tlie'liquid at the lower ends of the cylinders, one of the rings iii the presentinstance is provided with a tapered rib 231 which closely lits a corrcspotuliiigly shapedgroove iii the l other ring.

Wli'eii the regeiieri'itive section is mounted In the present in!" within the heating section of the pasteurizer, a chamber is formed between thel two section's wherein the liquid to be treated 1s heated, the liquid entering this heating' chamber after flowing downwardly over the corrugated walls of the-two cylinders of the regenerative section. ln order to in.- .ire unit'orin exposure of all portions of the liquid 'to the el'l'ect of the heating jacket 1 so that the dangerous bacteria may be killed or ren dered harniless' l prefer to use niet'liaiiical means for maintaining aiiiig1tat1oiiof the liquid so'that all portions iiiay be brought into contact with the inner wall of the heating jaelret. At the saine .time I provide 'means' for preventing stickingorburniug of the liquid u'poiitlie inner wall of the heat-ing jaeltet.' The means shown inthe present inn I v Vstance Vtor accomplishingthese results oo nsist's ot' a revolving element which coiiipriseslf a voheshaptal 'traine which has. armsI 32.

which-are rigidly attached to and extend upwardly l'roin a hase section 253,. these armsleaeli carrying preferably a plurality ot' ii- 'depeiule'iitl)V iiiorable serapers 34 '.wliieh,

hou'eveigviua'r lie'pivoted'oii a coiniitoirpiiot.

-rod 35, the iiid-eifiendeiit arrangement of these Scrapers enabling them-.to closely titA and` bear against the inner-wall 2 of the-heatingjacltet irrespectii'eof any. irregulari' ties-that may' e. st. These arms and the Scrapers carried tliereb'v'are of such (linien sions` that they may revolve 'freely between the l'ieatiiig jacketand that portionoli-the regenerative section which depends into thel. y

A'liquid within this ,chamber ,serying to` aiito-v heating jacket, the resistant-e-otl'ered b vtlie iiiatiefall)r .press the scraper blades' against' 'the' ini-ier wall ofthe heating-jacket. l l11i orf der that this revoluble element may he used t'or rreatiiig the discharge ot' the liquid't'i-uin 'the' heating eliaiiibfer after it haslieeii exion I posed t'or the proper perioth blades 36 arev l.

arranged oii 4'theV aiinsof the reroluble eleiiieiitand theyY operate i'vithinthe annular channel 5l toriiied `in the casing 81. and this lehaiinel is provided witlraii outlet orexit. iii which' preferably leads taiigeiitiallfj from' 4itsI periphery., the centrifugal elieet produced by the rotary motiorrof the liquid -in -tlie elianiiel 91 under thein'uence'of the blades '36. eausiiigsueli liquid to be discharged through said exit, and' liquid to replat-e that discharged -in'this' manner is' drawn from the lower portion ofthe heat? ing chamber through the operation of these4 eeiil'rlt'iigal hladee'.' In order toperinit the grevoliible. eleii'ieiit to be bodily removed from the heatingseetioniof the pasteurizer, these blades 3G are' prefer'ably'pivoted Yto` the arms Aso that they may bo swung inwardlyt'o clear the overhangiiig wallflOof tlie'oasing inl which they operate, lugs-or shoulders 38 boing provided tofserve as reststo supporti theeblades in outstanding position. While relatively high temperature then ascending 65 n operation. A l n y through the space; betweenthe cylinderal- 4'I oiartaher facilitate the removal of the where is'temperat-ure is `lowered lby the' VrevolubleY element, the latter is. provided in liquid entering the pasteurzer,

i 5 thev present instance with a centrally ar I claim as' my invention ranged socket, 39 which receives a suitable 1. 'regenerative pasteurizer comprisingi'zi) operating shaft 40, this shaft having prefer-a a heatingseetion and a regenerative section, i ablya spline connection with the soci-:et so the regenerative section' being removably l that the latter may be applied "to and reinounted'ivithinthe heating Section. l0` moved from the upper end of this shaft 2. A regenerative pasteurizer comprising although a driving connection is provided a heating section, a regenerative Section, and 75 between them. The shaft @i0 in the instance -means for removably supporting the regeln" shown extends upwardly through the top crative section within the lieating'section. l. plat'e of the base, a suitable packed joint be- 3. A pasteurizer comprising a heating seeing provided if necessary, and motion may tion, a lcooling section, the cooling section be transmitted to this shatt to effect the necadapted to be contained by the heating sec- Sol essary movement or' the revolving element, tion, and means for detachably connecting 'a tight and loose pulley arrangement being .said sections and forming a fluid-tight joint shown as an instance iu'the drawing. between them. n V A pipe 4l connects the out-let 37' of the 4. A pasteurizer eo'mprisinga heating sec .heating section to the inlet?! arranged pret'- tion. a regenerative section composed of 85 erably at theliottom of the regenerative secrelatively separable. members, the regenen l tion, and the latter in the present instance is tive section being capable of application and y provided with an outlet i3 which may be. removal a nuit within the heating section. connected to a suitable cooler. A ring' il I A regenerative,.-pisteurizer comprising preferably connecte the arms of the revolua heating section, va regenerative section, 90 ble element 'to retainv them in proper reiasaid sections beinl arranged at different ele* tion. i vations vand provided with means for-leonA The Operation of the pasteurizer shown in ducting liquid froml one to the other, and f the present `inet-ance may be brietiy deecribed inerme operable Within the heating section as follows; Theinilk or liquid to be pasteurfor inducing a flow of liquid from the lower 95 i ized is suppliedto the apparatus by the upto the upper section. vper tank iroxn which the liquid iioivs into (S. A. pasteurizer comprising heating and l `the-'troughs and thence over the corrugated' regenerative' sections ar jtinged at ditterent j 357 Walls of the inner and outer. cylinders of the elevations and having means for conductingregenerative section. Ae the heated liquid liquid from one to the other, and means to 100 v" leaving the apparatus after pasteurization act'upon the liquid in the heatingsection to passes through the chamber formed between produce a centrifugal action that will cause these cylinders, Suchliquid will give up ite a. discharge of the liquidv from the' heating 40 heat to the relatively cooler liquid entering Section and into the-regenerative section.4` ,fthe apparatus., the entering liquid being 7. A paeteurizer corprising 'heating 105 ,l 'thereby preliminarily farmed while the dis- Section, a regenerative section dependingcharging liquid is coqed appreciably. into vthe heating section and communicatiugg,r u 'From the regenerative section the liquid with a heating chamber in theelatter, and a thus vwai-ined entera the heating chamber revoluble element contained within l-said' ''Which is under the influence ot' the heating heating` chamber and having' mea'nato act. 110

ijacket, and while in thiS heating chan'iber, centriiugally upon the liquid therein to the temperature will be uniformly1 increased cause its discharge into the regenerative'sec- .to the pasteurizing point owingto its co'ntion. v i 5U tact with the- Wall of the heating` jacket and 8. A pasteurizer involving a heating aecthe constant agitation of the liquid due to tion forming` a heating chamberfor a liquid, 115

Ithe action ofithe revolublc element, the and a revolubrle element having scraping scraper' bladen4 thereon performingI the duallbladesto cooperate with the Walls' ofytlie function 'ot keeping the liquid iu motion ao heating chamber, each blade being com 'osekd 55 that diiercnt portions therewi-n are beinger,N of a pluralityo'tuperpoeed indepen ently posed to the direct heat of the jacket, and movable sectiono--eo coperate with and cbnsticking and coneequ'eatly overheating of thel form to the shape of the Sv ll of theheating liquidis avoided. Vflien the liquid reachesv chamber. I l f the upper portion of the heating chambt-i 9. ln a pastcuriz'er, the 'combination-of al -v 60fit is acted on by the revoiving bia'd'ea the' .heating section forming a chamber for the Y centrifugalctiect thus produced causing; the 'liquid to be pasteurized, the 'upper portion 1,25 -liquid to diacharga trom the heating Section of Said chamber 'communicating with nani and it is then conveyed to 'the lower portion i nular outwardly `Q`set channel having an of the regenerative section, this liquid at: a outlet, a ievolubleeleinent having ablade `to loperatein Said channel and to effect a discharge of liquid from the heating chamber byA c entritugal action. and a regenerative section mounted withinsaid heating" section 'eating with said chamber, a revoluble element-mounted in said chamber and having scrapers to cooperate with the wallsl thereof, said revoluble element also carrying a t'reel)7 movable blade which operal'ile in Said 1 channel to effectV a discharge ot' liquid from the heating chamber, 4and a regenerative sec'- 4tion *extending to a height above the heating section and havinga lower inlet to receive liqui(l (liscliaiged therefrom and having an outlet above the heating section..

11. A regenerative pasteurizcr comprising an outer heating section, a regei'ierative Section depending into the interior of the heating section and connected to receive heated liquid therefrom` and a revoluble element mounted within the heating section and enibodying a plurality of upwardly extending. arms having Scrapers thereon to cooperate with the walls of the heating' section, said arms and Scrapers operatingi'n an annular space formedl between the heating and regenerative sections, and a ring surrounding the regenerative section and rigid l v connecting the upper ends of said arms. 12. ln a regenerative inisteurizcr.the coinbinatioii of a heatingl chamber t'or the liquid to be pasteurized, a regenerative section having its lower end depending' yinto the interior ot t'lie heating chamber. means connectingr the heating chamber to the regenerative section wherebj.l the latter may receive heated liquid from the heating chamber and having a plurality'of arms cxt'ei'iding upwardly into 'an annular space forincd between the/heat! inv' chamber and the regenerative section. said ari'ns being provided -wiih scrapers to cooperate with. the wallsv of the heating chamber and also carrying blades operative to discharge the heated liquid centrit'ngally -from the heating chamber. and a ring surrounding the reginerative section and rigidl)V connecting thceuppcr portions oi'I said 13.- is regenerative pasteurizer comprising a lieatingsection provided with a jacket l'oi' a heating' incdiui'i'i and a chamber for the liquid'to be pasteur-ized. the upper portion of said chamber being opi-n. a regenerative section adapted io entr-r thc heating chainber and extend to an elevation higher than the top oi thc healing'sectiou, and a Harige attached' to the regenerative section yand serving to support the saine within the heatingsection and to produce a fluid-tight closure 'for the top ot' the heating cliainbei'.

14. regenc 'ative section't'or pasteurizers comprising members each interiorly and 'extei'iorlv corrugated and adapted to be mounted one within the other andl to forni a liquid passage between them, means on opposite ends otI I:said members for detachably uniting' them, and means oneach ineinbei' for causing the How ot'4 liquid over its respective exterior corrugated surface.

15. A. 'regenerative section forpasteurizers comprising *relatively lsepi'irable` inner and outer members forming a' liquid pas. age between them, `means t'or producing a-'tluidtight'connectioii between both ends of said fluid-tight joints between theni, and meansl sol 'set-tions. and a gutter formed onfeacli"-iiiei'n--4 at one end of the section for detachal'ily uniting th'e rings atboth ends thereof.

17. A regenerative section foipasteurimn's comprising separably connected inner and -outer iuei'nbers forming a passage to contain liquid between tliciil. and nieans torined on the respective In'iciiibere for causing a Huid toilesceiid in films over the inner 'all otl the inner member and the outer wall of the outer memberl land an inlet on one member and an outlet onl the other member for conducting liquid to and t'i'oin `the passage t'oriued between the inen'ibers'.

lH. .t regenerative section i'oi' pasteur'izers comprising corrugated members one removably contained within the other and fo'rinii-ig a liquidV passage betweei'rthem, a -gutter for discharging a liquid over the exterior wall' ol the outer section. a glitter for causing the How of a liquid over the interior wall of the inner incmbci'. and an iiiletcarried by one i member and an outlet carried by the other meinberfor conducting' liquid to and froi'ir j y the passage formed between the iii/embers.

if). A regenerative pasteurrner comprising a heating section providing a heating cliiim' bei: toi' the liquid to bef pastcurized, a rereiicralivc section coi'rq'ir'ising'a pair of verf lically arranged `inner and outer incn'ibers forming a liquid passage between t-hen,4

nieans i'or discharging liquid upon the eitterior wall ot'4 thcrouter member. 'and the intcriorwall of the inner 'inenlbcig and means .Vor conducting liquid vfrom the heating chamber-ot' thc heating sectionftoqthe passage between thc members-of thelregcncrativo section.

iii

20. 'A rpmsteurzer comprising a healting In testimony 4,whereof I have hereunto set section, a 1egenerati ve section extending to my handin presence of two .subscribing Wit- 10 an elevation higher lhan thzytfnf the' heating messes. v y

section, and 'einem er o fa 1e within the 5 heating section and havileg'means for` a i- .JOSEPH WILLMANN mting the liquid thereinand also means or Witnesses: l y forcblydischarging it into the regenerative I EBWABD I, BARNES, section.' D. R. CLARK. 

